Abstract
Polyaromatic hydrocarbons (PAHs) are major and recalcitrant pollutants of the environment and their removal presents a significant problem. Phytoremediation has shown much promise in PAH removal from contaminated soil, but may be inhibited because the plant experiences phytotoxic effects from low-molecular-weight PAHs such as naphthalene. This paper describes the construction of a naphthalene-degrading endophytic strain designated Pseudomonas putida VM1441(pNAH7). This strain was found to be an efficient colonizer of plants, colonizing both the rhizosphere and interior root tissues. The inoculation of plants with P. putida VM1441(pNAH7) resulted in the protection of the host plant from the phytotoxic effects of naphthalene. When inoculated plants were exposed to naphthalene, both seed germination and plant transpiration rates were higher than those of the uninoculated controls. The inoculation of plants with this strain also facilitated higher (40%) naphthalene degradation rates compared with uninoculated plants in artificially contaminated soil.
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Claims 5
Claim · model-written summary
The engineered strain colonized plant rhizospheres and interior root tissues.
- Taxon
- plantsViridiplantaee0
- Interactor
- This straine0symbiont
- Outcome
- colonizing both the rhizosphere and interior root tissuese0
Verbatim
e0“This strain was found to be an efficient colonizer of plants, colonizing both the rhizosphere and interior root tissues.”
Claim · model-written summary
Inoculation with P. putida VM1441(pNAH7) protected plants from naphthalene phytotoxicity.
- Taxon
- plantsViridiplantaee0
- Treatment
- inoculation of plants with P. putida VM1441(pNAH7)e0
- Interactor
- P. putida VM1441(pNAH7)
Pseudomonas putidae0symbiont - Outcome
- protection of the host plant from the phytotoxic effects of naphthalenee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The inoculation of plants with P. putida VM1441(pNAH7) resulted in the protection of the host plant from the phytotoxic effects of naphthalene.”
Claim · model-written summary
Inoculated plants exposed to naphthalene had higher seed germination than uninoculated controls.
Verbatim
e0“When inoculated plants were exposed to naphthalene, both seed germination and plant transpiration rates were higher than those of the uninoculated controls.”
Claim · model-written summary
Inoculated plants exposed to naphthalene had higher transpiration rates than uninoculated controls.
Verbatim
e0“When inoculated plants were exposed to naphthalene, both seed germination and plant transpiration rates were higher than those of the uninoculated controls.”
Claim · model-written summary
Inoculation with the strain increased naphthalene degradation rates by 40% relative to uninoculated plants.
Verbatim
e0“The inoculation of plants with this strain also facilitated higher (40%) naphthalene degradation rates compared with uninoculated plants in artificially contaminated soil.”
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See all 46 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.